[Zope-Annce] [ANN] TextIndexNG 1.0RC1 released

Andreas Jung andreas@andreas-jung.com
Fri, 17 May 2002 18:52:01 -0400

I am pleased to announce the first release candidate of TextIndexNG V 1.0.

TextIndexNG is a pluggable index for the ZCatalog that
enhances the full text indexing capabilities of Zope by
providing the following features:

    * support for document converters (HTML, PDF, WinWord, PowerPoint,
      Postscript). Custom converters can be easily added

    * stemmer support for 12 languages

    * support for right truncation

    * similarity search (soundex, metaphone support) (for english)

    * NEAR search

    * phrase search

    * pluggable query parsers (two parsers included)

    * stop words support

    * new test tab for interactive testing

    * 2-3 times faster than Zopes TextIndex (more to come ;-) )

    * compatible with ASCII, ISO-8859-1


    * Zope 2.5 or Zope CVS trunk checkout


    * http://www.zope.org/Members/ajung/TextIndexNG/wiki/


    * http://www.zope.org/Members/ajung/TextIndexNG/


    * The installation is described in the Wiki (see above)

Changes since alpha 2:

    * added new PyQueryParser (implements the same query syntax
      as QueryParser but it is a native Python implementation that will
      run on all platforms and does no longer require flex/bison). The
      benefits are locale support and unicode support on the parser level.

    * deprecated and removed QueryParser module

    * fixed memory leak in C extension for lexicons

    * added support for right trunctation to CLLexicon

    * right truncation is now always enabled (Lexicons are now using BTrees
      only instead of optimal dictionaries for better performance)


    * Andreas Jung, Email: andreas at andreas-jung.com